JPH01105380A - image transmission device - Google Patents

Abstract

PURPOSE:To simplify the constitution of the title monitoring device and to facilitate its handling by switching information supplied to a monitor with a setting means at the time of the reproducing action of the monitor, and starting the monitoring action with the setting means when the reproducing action of the monitor is stopped. CONSTITUTION:A system control circuit 39, a memory control circuit 27, monitoring stopping means, etc., are provided at a stationary picture transmitter including a monitoring circuit 1 to reproduce the supplied information as a visual image. A switch 3 connected to the circuit 39 moves a reproducing track in a direction, where a track NO increases, a switch 4 moves it in the direction, where the track NO decreases, a display switch 5 displays the reproduced track NO, transmission NO, etc., in the circuit 1, and the switch 5 stops the monitoring action. Further, the information supplied to the monitor while the monitor is reproduced is switched, and the switch 5 starts the monitoring action while the monitoring reproducing action is stopped.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a monitor device.

[Conventional technology]

2. Description of the Related Art Conventionally, as a monitor device, a device such as a CRT that reproduces a video signal reproduced from a magnetic recording medium as a visible image is known. Some of these devices are configured to automatically stop the monitor display using a timer or the like, for example, in order to save power or prevent the monitor from deteriorating over time.

[Problem to be solved by the invention]

In the above-mentioned apparatus, it is necessary to restore the original monitor display state after the monitor display is stopped, and it is necessary to provide an operating member for this purpose.

However, providing such an operating member to a device not only complicates the configuration of the device, but also causes a user to make a mistake in operation.

The present invention has been made in view of these points, and an object of the present invention is to provide a monitor device that has a simple configuration and is easy to use.

[Means for solving problems]

To achieve the above objects, the present invention provides a monitor that reproduces supplied information as a visible image, a stop means that stops the reproduction operation of the monitor, and a stop means that stops the reproduction operation of the monitor, and when the reproduction operation of the monitor is performed, the present invention provides a monitor that reproduces supplied information as a visible image. and a setting means for switching information supplied to the monitor and starting the operation of the monitor when the reproduction operation is stopped by the stopping means.

[For production]

In the above configuration, when the reproduction operation of the monitor is performed, the information supplied to the monitor is switched by the setting means, and when the reproduction operation of the monitor is stopped, the information supplied to the monitor is changed. The means initiates operation of the monitor.

〔Example〕

In this embodiment, which will be explained below with reference to the drawings, a color or monochrome image recorded on each track on a magnetic disk (hereinafter also referred to as a video floppy) is reproduced, first stored in a semiconductor memory, and then stored in a built-in semiconductor memory. Although the present invention is limited to such a device, the present invention is not limited to such a device. It is clear that this is not the case.

<Configuration of Embodiment Device> FIG. 1 shows the front side of a still image transmission device to which the present invention is applied.

In FIG. 1, l is a monitor for reproducing the reproduced video signal reproduced from the video floppy as a visible image, and for confirming and selecting before transmission.

Reference numeral 18 denotes a storage part for storing an acoustic coupler, which is a means of transmission, and reference numeral 2 designates a storage part for storing an acoustic coupler, which is a means of transmission. It is a shield plate to prevent This is indicated by a broken line because it is located within the main body.

3 is a switch for moving the playback track in the direction of increasing the track number during video floppy playback, and 4 is a switch for moving the playback track in the direction of decreasing the track number. Reference numeral 5 denotes a display switch, which is a switch for displaying reproduction track numbers, transmission track numbers, etc. on the monitor 1, as will be described later. 6 is a power switch, and each time the switch is pressed, the power of the device is turned on and off. Reference numeral 9 is a power LED that is controlled to be lit while the power is on.

7 is a transmission start switch, 8 is a transmission stop switch for stopping transmission midway, and 10, 11, and 12 are LEDs that light up as the transmission sequence progresses, which will be described later.

13 is a battery meter for monitoring the power supply voltage of this transmission device, and 14 is an eject switch for taking out the video floppy jacket.

15 is a switch for determining the transmission mode, and the mode selected by this is the mode shown as the color field mode, 3 colors (R, G, B), 2 colors (
Y and (R-Y)/(B-Y) compressed data), the mode shown as the monochrome mode includes frame and field modes. Reference numeral 16 denotes a playback mode selection switch, which allows selection of frame playback or field playback.

17 is a level selection switch for adjusting the speaker output when acoustic coupler transmission is performed. 18 is the storage chamber. Reference numeral 100 denotes an insertion section for inserting a video floppy. Fig. 1 shows the insertion section opened when inserting a video floppy. After the user inserts a video floppy, the user closes the door in the direction of the arrow. Loading is completed.

FIG. 2 is a block diagram for explaining the system configuration of the electrical system of the device of this embodiment.

In FIG. 2, reference numeral 31 denotes a magnetic sheet built into the video floppy. On this magnetic sheet 31, video signals in l-field units are recorded forming concentric tracks. The magnetic sheet 31 is rotationally driven by a motor 32 controlled by a motor drive circuit 33. Monitor drive circuit 33 is also controlled by system control circuit 39. H.A.

HB is a playback head, for example an in-line head, which performs field playback or frame playback.

The playback head HA is connected to the A terminal of the switch 20, and the playback head HB is connected to the B terminal of the switch 20. The switch 20 is switched by a switching signal from the system control circuit 39. The output of the switch 20 is supplied to a reproduction process circuit 23 via a reproduction amplifier 21, and the reproduction process circuit 23 outputs a reproduction luminance signal (Y), a line sequential color difference signal ((RY)/(B-Y)), Horizontal synchronization signal (H8
), a vertical synchronization signal (VS), a dropout pulse (DOP) that occurs in response to the absence of a playback envelope, and a signal (C/M) indicating whether the playback video signal is color or monochrome.

In addition, the output of the reproduction amplifier 21 is output from the envelope detection circuit 2.
2 is also supplied. The envelope detection circuit 22 constantly detects the playback envelope, and outputs, for example, "H" level when there is a playback envelope, and outputs, for example, "L" level when there is no playback envelope, that is, in the case of an unrecorded track. It is something. The output signal of the envelope detection circuit 22 is supplied to a system control circuit 39.

The reproduced luminance signal Y and the line-sequential color difference signal (RY)/(B-, Y) from the reproduction process circuit 23 are sent to the A/D conversion circuit 24. 25, and is temporarily stored in the memory circuit 26, and the reproduced luminance signal Y is used for video monitoring.
It is also supplied to the monitor circuit l via the adder 28. The adder 28 is supplied with a font pattern signal from a character generator circuit 29 in order to superimpose a display such as a track number on the image displayed by the monitor circuit 1. This character generator circuit 29 rewrites data for a specified character under the control of the system control circuit 39 on the data line 40. This is performed using the rewriting control line 41. The memory circuit 26 also includes a field memory M as shown in Table 1, which will be described later. There are two 9M.

A memory control circuit 27 that controls the memory circuit 26 is supplied with a horizontal synchronizing signal H8°, a vertical synchronizing signal vS, and a dropout pulse DOP from the reproduction process circuit 23. 42 is an address bus, 43 is a data bus, and 44 is a control line. A magnetic piece (not shown) is fixed to the magnetic sheet 31 for detecting the rotational phase, and is read by the magnetic head HC. The amplifier 34 amplifies the output signal (PG pulse) of the magnetic head HC, and the output of the amplifier 34 is used as feedback to the motor drive circuit 33 to control the rotational phase of the magnetic sheet 31, and also to the memory control circuit. 27 and is used to control the memory circuit 26.

Furthermore, the PG pulse is also supplied to the system control circuit 39 and is used for advancing the system program and counting the timer.

Memory control circuit 27 also connects to system control circuit 39 via control lines 47, data bus 46, and address bus 45. The reproduced video signal written from the reproduction process circuit 23 to the memory circuit 26 is transferred to the data bus 43, the memory control circuit 27 and the hitator bus 46.
is taken into the system control circuit 39 via
The system control circuit 39 sends the video data to the transmission control circuit 35. The transmission control circuit 35 converts the input video data into a signal format suitable for transmission (AM, FM, etc.)
The signal is converted into a signal and sent to the transmission line from the output terminal 37 via the level adjustment circuit 36.

The output of the level setting switch 17 is input to the level adjustment circuit 36, and the output level changes according to this setting level. Furthermore, the level adjustment circuit 36 has an output terminal 37.
However, for example, the output of a switch 38 that is turned on and off depending on whether it is connected directly to a telephone line or to an acoustic coupler is also input, and in the former case, the level setting described above is also input. Regardless of the output of the switch I7, the machine is controlled so that the output is always at a constant level.

Connected to the system control circuit 39 are various switches for specifying the operation of the apparatus. The track-up switch 3 instructs the playback heads HA, HB to move in the direction of increasing track numbers, and the track-down switch 4 conversely instructs them to move in the direction of decreasing track numbers. The display switch 5 is used to sequentially change the characters superimposed on the monitor circuit 1 each time it is pressed, and the operation sequence and display character format will be described later. Reference numeral 7 denotes a start switch for transmitting the reproduced video signal written in the memory circuit 26 from the output terminal 37. Reference numeral 8 denotes the aforementioned switch for stopping transmission midway through transmission. The switch 15 is a switch for specifying a transmission mode, and by selecting one of the four positions shown in FIG. 1, the system control circuit 39 recognizes the transmission mode.

The switch 16 is for selecting the playback mode (field playback or frame playback), and the system control circuit 39 accordingly determines whether the switch 18 is continuously connected to either the A terminal or the B terminal. , or control to alternately switch each field.

LEDIO~12 are the LEDs shown in Fig. 1 that turn on during transmission, and as will be described later, in phase mode, LEDIO
In the white mode, the LED II is controlled to turn on, and in the data mode (video signal section), the LED 12 is controlled to turn on.

30 is a power supply circuit, and a system control circuit 39
Under the control of
PWR, PB in the regeneration process circuit section PWR, A/D
AD PWR in the conversion circuit section, MEM in the memory circuit section
PWR, MONI circuit section i: MONI PWR, TX PWR to the transmission control circuit section, and SYS PWR to the system control circuit section, respectively, to perform on/off control of the power supply.

The power supply circuit 30 includes a power supply battery V as shown in FIG.
It includes BAT, a transistor Tr for controlling the BAT, and a power supply controller C for controlling the transistor Tr.

Further, the output of the power switch 6 is supplied to the circuit 30, and when the power switch 6 is pressed with the power off,
The controller C in the power supply circuit 30 starts operating,
Next, the SYS PWR is turned on (controlling the control transistor Tr and starting the operation of the system control circuit 39).

The output of the power switch 6 is the system control circuit 3
9 is also supplied, and after the -1 system has been activated,
As will be described later, the system control circuit 39 detects this input level and controls the power on/off of the device. 9
is a power LED, and its lighting is controlled by the system control circuit 39 while any part of the device is powered on (except for the controller C shown in FIG. 22). 41
35 is a detection circuit consisting of a photocoupler for determining whether a video floppy is inserted, and 35 is a transmission control circuit, which sends the code signal, synchronization signal, white level, etc. shown in Fig. 3 to the system control circuit. The image signal is generated according to the image signal, and the image signal is, for example, AM or FM modulated.

FIG. 3 shows the still image transmission data waveform of this embodiment. In such transmission, data is read and transmitted using the memory circuit 26 shown in FIG. 2 according to a sequence described later, and the transmission waveform for a single color is shown. In FIG. 3, the horizontal axis is the time axis, and the vertical axis shows the level of transmitted data. Note that the symbols X and Y attached to the horizontal axis indicate the horizontal and vertical addresses of the memory corresponding to the data being transmitted. The structure of this data waveform includes a code section consisting of transmission data consisting of IH (IH is the time required to transmit 1 horizontal line of the screen), a synchronization section consisting of 3H, a white level section consisting of 2H, and a code section consisting of transmission data consisting of IH. It consists of a data start detection section and a video section.

The transmission data in the data section consists of data indicating whether the transmission mode is frame transmission or field transmission, and data for distinguishing the transmission color mode (monochrome or single color, two colors, three colors, four colors).

The synchronization section controls the IH period (L line 0-XE dot
When read out to generate a synchronization part, dots 0-4 are the white level and dots 5-XE are the black level).This is a synchronization signal used to know the line separation of the video signal part. . The white level is a level corresponding to the white level of the video section, and is a reference level signal for correcting transmission level changes affected by transmission line conditions. still,
In such a data waveform, the period of the synchronization part and the white level part may be set to a long time, for example, 10 seconds.

Further, the 2H data start detection section is provided to more accurately obtain the data start of the video signal.

FIG. 4 shows the data of the video section arranged two-dimensionally. The horizontal direction is X-0 to XE dots, and the vertical direction is Y-0 to YE lines, total (XE+1)X (Y
E+1) Consists of dots.

<Operation of the Embodiment> Next, the operation of the embodiment of the present invention will be described using a flowchart.

FIG. 5 shows the overall flow of this embodiment. The start in this figure is assumed to start after the power switch 6 is pressed and the power supply SYS PWR is supplied from the power supply circuit 30 to the system control circuit 39 from the power off state of the system.

First of all, the system initialization routine 5step 5-
1, initialize the necessary parameters. in particular,
After clearing the flag TX FLG indicating that transmission is in progress and inserting the video floppy into the insertion section 100, the system control circuit 39 performs a playback initialization operation to recognize which track is currently being played. Flag INIFLG indicating whether it is necessary
Set the flag IRQ to determine whether or not to start interlaced processing to perform the transmission operation.
Set FLG to disable interlaced processing. Also, if the power is on for a certain period of time (for example, 10
Preset the timer OFFTIM to automatically turn off the power if no track up, down, or transmission operations are performed (minutes). In addition, a parameter D is used to determine the state of track information to be multiplexed on the monitor.
Reset the ISP STS.

Furthermore, the aforementioned PB PWR, DECK PWR, M
OMIPWR, MEM PWR, TX PWR,
All are turned off by controlling the power supply circuit. In addition, the power LED is turned on, and the transmission sequence display LED is turned on.
Clear all IO~12 (.

After completing the initial settings, it is determined whether a program interwoven request for starting a program has occurred (step 5-2). As mentioned above, the program interoperation is, for example, by the 20 msec internal counter in the system control circuit 39 or by the PG multiplication signal accompanying video floppy playback, both of which are also used for timer operation. . The former is selected if there is no video floppy, and the latter is selected if there is.

When a program interoperation occurs, it is detected whether or not the power switch 6 has been pressed, and if it has been pressed, the power supply circuit 30 is controlled, and after turning off all power supplied to each circuit section, the SYS PWR Turn off the power and turn off the system.

If the power switch 6 is not pressed, a playback routine (step 5-4) detailed in FIG. 6 is entered, and the playback deck around the video floppy is controlled. Furthermore, a transmission routine (st) for controlling the transmission operation detailed in FIG.
ep5-5). Then, a character routine (step 5-6) for multiplexing track information on the monitor and a power supply control routine (step 5) that mainly controls the power supply of the reproduction process circuit section and the deck section, which will be explained in detail in FIG.
-7), returns to step 5-2 again, and waits for the next program interlude.

Reproduction Routine> Next, the reproduction routine in FIG. 5 will be explained using FIG. 6.

First, it is determined from the output of the detection circuit 41 whether or not a video floppy is installed (step 6-1). If it is not installed, the PB PWR of the playback process section.

DECK PWR around the deck, and M in the monitor section
Power off each ONIPWR (5step6-23),
A playback initialization flag INI FLG is set (step 6-24).

If the floppy jacket is installed in step 6-1, check the status of the playback initialization flag INI FLG, and if it is "O", that is, playback initialization is not necessary, proceed to step 6-9 or later, 'l', that is, playback initialization is necessary. If there is, the PB of the regeneration process section
PWR, DECK PWR in the deck section.

Then, the MONI PWR of the monitor section is powered on (step 6-3). Thereafter, playback initialization is performed (step 6-4). This is -dan, playhead HA
.

The HB is moved to the innermost circumference of the jacket, and when the absolute track position is recognized, it is moved to the first track. Normally, it takes longer than the program interwoven period for this operation to complete, but in this embodiment, once a command to initialize the motor drive circuit 33 and the head drive circuit 19 is given to the motor drive circuit 33 and the head drive circuit 19, the A circuit automatically performs the operations described above. When the playback initialization operation is finished, the playback track number variable PBTRNO is set to 1.
(step 6-5). During the transmission operation, if no operation related to the playback operation is performed, a low power consumption mode is entered in which the power to the playback process section and the deck section is turned off, and the LPTIM, which is a timer for this purpose, is preset (step 6-6). . Note that this timer LPTIM is set to about 10 seconds. The value of this timer may be, for example, about 10 seconds. Next, tie 77- is used to turn off the power when there is no operation for a certain period of time as described above.
0FFTI is preset (step 6-7), and the playback initialization request flag INIFLG is cleared (s
step 6-8). Also, this Thailand? -0FF TIM is L
The time is set to be longer than PTIM, for example, about 10 minutes.

In step 6-9, it is determined whether or not the low power consumption mode is currently in effect, and if it is, the process returns without executing steps 6-9 and subsequent steps in order to ignore the following track up and down routines. If it is not the low power consumption mode, it is checked whether the track up switch 3 is pressed (step 6-10). If pressed, O
5step 6-12) to preset FFTIM, check whether the current playback track number is smaller than 50 (maximum track number) (step 6-13), and if it is 50 tracks, ignore the following steps in 5step 6-22).
If it is smaller than 50, advance the track by one track in the direction in which PBTRNO increases (inner circumferential direction) (step 6-14), increment PBTRNO, and preset LP TIM (step 6-14).
16).

If the track up switch 3 is not pressed in step 6-10, the state of the track down switch 4 is checked (step 6-11). PBTR if not pressed
5tep6-22) to play the NO track, if pressed, 5tep to preset OFF TIM
6-17), s' as in the track-up routine
Only when PBTRNO is larger than 1 in steps 6''-18 to 21 (step 6-18), track feeding is performed in the direction in which PBTRNO decreases (outer circumferential direction).
ep6-19-21).

When the track feed operation is performed in this way, 5tep6-
At step 22, the PBTRNO track is played back. In addition, when this up/down is performed, OFFTIM, LPTIM
is preset, so timekeeping will be performed anew from this point onwards.

<Transmission Routine> Next, the transmission routine in step 5-5 of FIG. 5 will be explained using FIG.

If the state of TXFLG is "0", that is, if it is not transmitting, then it is determined whether the transmission start switch 7 is pressed (step 7-2), and if it is not pressed, the transmission control circuit 35 and the circuits 26 and 27 are configured. Turn off the power supply TX PWR and MEM PWR for part of the memory (st
ep7-16). If it is pressed, OFF TIM is preset (step 7-3), and the presence or absence of the reproduction envelope of the first field is determined by detecting the output level of the envelope detection circuit 22 (step 7-3).
4). If there is no envelope, the process goes to 5step 7-16, and if there is, it is determined by the playback mode switch 16 whether frame playback is to be performed or not. If it is field playback, the image can be played back by confirming that there is an envelope in the first field, so branch to step 7-7, and if it is frame playback, check whether the other field can be played back. Therefore, the presence or absence of a reproduction envelope in the second field is checked (step 7-6).

5 steps? -4, 7-6 If there is no playback envelope, there is no image to be transmitted, so the flow is 5 steps
Branches to 7-16 and prohibits transmission. On the other hand, if there is an image to be transmitted, the routine proceeds to step 7-7 and thereafter, and the transmission operation begins.

In step 7-7, parameters necessary to start transmission are initialized. Specifically, the variables Z and Yl indicating the transmission line shown in FIG. 3 and the variable X indicating the horizontal dot position are cleared. In addition, the transmission mode actually executed during transmission and the fourth
The final line No., YE, and even the third line of one screen shown in the figure.
The number of times the transmission sequence shown in the figure is repeated, that is, the number of sheets N, is determined as shown in Table 1.

Table 1 Here, regardless of whether the reproduced signal is monochrome or not, if the transmission mode switch 15 is set to color mode, the same information will be sent multiple times, so in this embodiment, the actual transmission mode is The monochrome field mode avoids waste. Therefore, the optimum transmission mode can be selected depending on the nature of the image.

Furthermore, in step 7-7, the variable TXPBNOi is the transmission track number, and PBTRN is the reproduction track number.
Assign the value of O.

When the transmission parameters are initialized in this way, the A/D
Turn on the power supply AD PWR of the converters 24 and 25 and the power supply MEM PER of a part of the memory (ste
p7-8). Thereafter, a memory freeze operation is performed according to Table 2. The memory circuit shown in FIG. 2 has two field memories, which are called M. .

It is shown in the table below as Ml.

Table 2 Here, y 1st is the Y signal of the first field, Y2od
is the Y signal of the second field, (RY) 1st/
(B Y ) 1st represents the color difference line sequential signal of the first field.

Figure 20 shows color field mode (2COLOR/
3COLOR), and FIG. 21 schematically shows the freeze state in monochrome frame mode, and the suffix Y indicates the line number.

Furthermore, in the monochrome field and monochrome pheasant frame modes, only the memory MO shown in FIG. 21 is frozen.

When the playback signal is frozen in the memory as described above, the A/
Turn off the power supply AD PWR of the D converter 24 and 25 and the power supply DECK PWR of the deck section 5step7-1
0), then dropout compensation is performed based on the dropout pulse DOP supplied from the reproduction process circuit 23 to the memory control circuit 27 (step 7-11).

A specific method of compensation in this embodiment may be, for example, pre-interpolation, but other methods include, for example, the method shown in Japanese Patent Application No. 62-19463 already proposed by the present applicant. Just pick it.

After completing the dropout compensation, turn on the power supply TX PWR of the transmission control circuit 35 (5step 7-12),
A flag TXFLG indicating that transmission is in progress is set (step 7-13). Furthermore, since it entered transmission mode,
Preset LPTIM 5step 7-14), 8th
In order to start the transmission interwoven routine shown in the figure, the interwoven request mask IRQMSK is cleared (step 7-15).

If it is determined that TXFLG is "1" in step 7-1, that is, transmission is in progress, it is checked whether the transmission stop switch 8 has been pressed (step 7-17). If it is not pressed, the process goes to step 7-22. OFFTIM is preset in order to branch off and turn off the power after a predetermined period of time rather than turning off the power immediately after the transmission is completed.

As a result, the power is not turned off immediately even after the transmission operation is completed, so it is convenient for the user to perform the next operation immediately.

When detecting that the transmission stop switch 8 is pressed in 5tep7-17, set IRQMSK so that the transmission interwoven routine does not start.5tep7-18
), clear the transmission flag TXFT-G (step 7-
19) Furthermore, the TX PWR and MEM pwR are turned off in order to turn off the power to the transmission circuit section and the memory circuit section (step 7-20). This allows unnecessary power consumption to be suppressed as much as possible. Next, all LEDs 12 to 12 indicating the progress of the transmission sequence are turned off (step 7-21), and OFF TIM is preset in the same way as when the transmission stop switch 8 is not pressed (step 7-22).

Next, transmission processing by interwoven processing will be explained using FIG. 8. FIG. 8 explains the transmission interlaced routine. After starting transmission, as explained in Figure 3, when Z=0 (step 8-1), the transmission data D (X, Y) is sent according to the code containing the parameters necessary for reception, such as the transmission mode. Determine (step 8-26)
. This specific data may be 3-bit data corresponding to the eight transmission procedures shown in Table 1.

Next, when Z is 1 to 3 (step 8-2), it is a synchronous part, so after lighting the phase LEDIO (step
p8-35), by horizontal address X (step
8-27), if 0≦X≦4, set the transmission data to “FF”, that is, the highest white level (step 8-28), and if 4<X, set the transmission data to “00”, that is, the black level (step 8-29).
).

When Z is 4 or 5 (step 8-3), it is the reference white level part, so the transmission data D (X, Y) is
” (step 8-30). At the same time, phase LF, D]O is turned off and white LED II is turned on (step 8-33). When Z=6, (step 8
-4), since it is the first IH of the data start detection section, it is "00", that is, the black level (step 8-31), Z=
When it is 7 (step 8-5), it is the next IH, so “
FF”, that is, set the white level (step 8-32)
. In the case of Z=8, that is, in the video section, after turning off the white LED II, control the lighting of the data L E D 12 (s
step 8-34), and branches to each routine (steps 8-7 to 8-11) depending on the actual transmission mode determined in Table 1 (step 8-6).

FIG. 9 shows a monochrome field routine of 5 steps 8-7. In this mode, as shown in Table 2, memory M. Since image data is stored only in memory M. After setting to read (step 9-1), access the data D(X, Y) (step 9-2).

FIG. 10 shows a monochrome frame routine of 5 steps 8-8. As shown in Table 2, in this mode as well as in the monochrome field, memory M is used. Since image data is stored only in memory M. After setting (step
o-1), check whether the vertical line number is odd or even (st
eplO-2), if it is an even line, the memory data D
(X, Y/2) is directly read out (5teplo-3), and if it is an odd number line, line interpolation is performed, so the memory data D
(X, (Y-1) /2) and D (X, (Y+1)
)/2), that is, calculate the average value of the upper and lower lines (ste
plo-4).

FIG. 11 shows a monochrome frame mote routine of 5 steps 8-9. In this mode, memory M is used as shown in Table 2. .

Please set 5tepH-2), address (X, Y/2
) access data D (X, Y/2) (s
tepll-3). If it is an odd field at 5tepH-1, the memory M is used to read the data on the second field side.
1 (step H-4), address (X, (Y
-1)/2) data D (X, (Y-1)/2) is accessed (step H-5).

FIG. 12 shows the 5 step 8"lo 2-color mode routine shown in FIG. 8, and FIG. 17 schematically shows the form of data actually transmitted in the 2-color mode. It is a Y signal of 640 pixels horizontally and 256 lines vertically. (b) is the second color, which is a (R-Y) signal spread every other pixel in the horizontal direction for 320 pixels horizontally, and a (B-Y) signal. ) Signals are transmitted simultaneously within one line.The fractions in the figure indicate that every other pixel is dazzled, and (') indicates that a non-existent line is interpolated using the average value of the upper and lower lines, etc. Show that.

In FIG. 12, in step 12-1, when the variable N indicating the color range is 2, that is, the first color, it is a Y signal, so the memory Mo must be set. X, Y) (step 12-3
).

Also, if N is 1, that is, the second color in step 12-1, after setting the memory M1 (step 12-4), determine whether the current line is the (RY) line or the (B-Y) line. 5) If it is a (RY) line, check whether the horizontal transmission address X is less than (XE-1) /2, that is, within the first 320 pixels (step 12-6)
, if the address in memory to be actually accessed is (2
*X, Y) and accesses the data D (2*X, Y) (step 12-7). In this example, “
*'' indicates multiplication.In 5tep12-6, there is no other case, that is, within the latter 320 pixels (B-
Y) To obtain the data, use the actual memory address (2* (X-(XE-1
) /2], Y-1) and (2* (X-(XE-1)
/2] and Y+1), and calculate the average value of both (step 12-8).

When the current line is the (B-Y) line at step 12-5, if X is less than (XE-1)/2 at step 12-9, that is, within the first half 320 pixels, it does not exist (R-
Y) Actual address (2*X.

The average value of the memory data of Y) and (2*X, Y+1) is calculated (step 12-10). 5tep 12-9
otherwise, the memory address (2*(X-(XE
-1)/2], access the data of Y) (ste
p12-11).

FIG. 13 shows in detail the routine in the three-force error mode. First, memory M is used to obtain Y signal data of the current line. access D(X, Y) and set the result to variable A
(step 13-1).

Next, R and G as shown in FIG. 18 according to the value of N.

The data is transmitted in sequence with B (step 13-2).

If N=3, that is, the R signal, determine whether the current line is the (R-Y) line or the (B-Y) line based on the color difference signal level in the memory. Read D(X, Y) directly from memory M1.
p13-4), (B-Y) line, D(X, Y-1) and D(
X, Y+1) and calculate their average value (step 13-5). 5tep13-4 and 5tep1
The result in step 3-5 is stored in variable B, and the next step 13-
In step 6, variables A and B are added to obtain an R signal.

If N=2 at 5tep13-2, that is, a G signal, similarly judge whether the current line is the (R-Y) line or the (B-Y) line.5tep13-7), if it is the (R-Y) line reads the data at address (x, y) of memory M1,
(RY) Store it in variable B as data 5step 13
-8), (B-Y) data is obtained by calculating the average value of upper and lower line data D (X, Y-1) and D (X, Y+1) of memory M, and as (B-Y) data, variable C Store it in (s
step 13-9). At 5tep13-7, the current line is (B
-Y) line, find the average value of the upper and lower line data of memory M, D(X, Y-1), and D(X, Y+1), and set it as the (RY) line data in variable B. Store (step 13-10). Also, the (B-Y) data is
Let it be read data of D (X, Y) of memory M1 (st
ep13-11). A, B, C obtained in this way
That is, from Y, (RY), (B-Y) data, Y = 0
．． 59G + 0.3OR+ 0.11B, -, G=(
Y-0,3OR-0,11B)10.59=[0,5
9*Y-0,30* (RY)-0,11* (B-
Y)] 10.59= (0,59*A-0,30*E
-0,11*C) / 0.59 is calculated (ste
p13-12).

5 step 13-2, if N=1, that is, the B signal, st
It can be obtained in exactly the same way as when obtaining the R signal in steps 13-6 in steps 13-3 to 5 (step 13-5).
13-5tep13-16).

As described above, the transmission data D (X, Y) obtained in steps 8-1 to 5tep 8-11 in FIG. 8 is supplied from the system control circuit 39 to the transmission control circuit 35 (s
step 8-12). Then, increment the transmission horizontal address
15), Check whether Z1, that is, the vertical counter value other than the video part, is smaller than 8, that is, whether it is in the video part or not. 5step 8-16) If it is not in the video part, increment Z. 5step 8-17 ), if it is a video part, increment the vertical counter Y by 5t.
ep8-18), the result is the final vertical line No., Y
It is checked whether or not E has been exceeded (step 8-19). If not, the routine is terminated. If not, it means that the video data for one frame has been completed, so the vertical line N
Clear O, 'Y (step 8-20), and decrement variable N representing the number of sheets (step 8-21). If N is not 0 (step 8-22), in order to proceed with the transmission of the next screen from the beginning, Z=1 is assigned and the routine ends (step 8-25). This is because the second and subsequent copies start from the synchronization signal section shown in FIG.

When N=O in step 8-22, all transmissions have been completed, so clear the transmitting flag TXFLG (step 8-23) and set IRQMSK to stop transmission interleaved (step 8-24).
).

<Character Routine> Next, the character routine shown in FIG. 5, step 5-6 will be explained using FIG.

This routine checks the power status of the playback process section, that is, whether or not the video floppy is in the playback state.
p14-1), if it is in the off state, the character display is controlled not to be performed. In this embodiment, as described above, the character is displayed together with the reproduced image on the monitor l, but the present invention is not limited to this, and it is also possible to control the display so that only the character is displayed without displaying the reproduced image. good. still,
In this case, if the PB PWR is off, only the track number being transmitted is displayed. 5tep
If PB PWR is on in 14-1, DIS
Detect whether P switch 5 is pressed 5tep1
4-2) If the button has not been pressed, the process branches to 5step 14-8; if the button has been pressed, after presetting OFF TIM (5step 14-3), it is checked whether transmission is in progress (step 14-4). When transmission is not in progress, that is, when the mode is simply a playback mode, DISP STS, which is a character display state variable, is incremented by modulo 2 (step 14-5). If the transmission is in progress, check whether the jacket has been taken out at - times after the transmission has started (step 14-9), and if it has not been taken out, proceed to step 5.
14-6 and below, and if it is determined that it has been output, the stored transmission track N01TXTRNO is changed to a meaningless symbol "-1" (step 14-10). This is the track number of the jacket that was attached at the time TXTRNO started transmission, so once the jacket is removed, there is no guarantee that the next jacket inserted is the same as the jacket before it was removed. It's for a reason.

Therefore, by executing 5tep14-9.14-10, the displayed track number, TXTR
No.

That is, it is possible to accurately know in which track of the jacket inserted into the device the image to be transmitted is recorded. Increment DISPSTS modulo 3 (5 steps 14-6), LP
Preset TIM (step 14-7).

At step 514-8, character display is performed according to DISP STS. FIG. 15 schematically shows the character display performed on the monitor l shown in FIG. (a) is a mode in which no characters are displayed, with DISP 5TS=0, and only the image is reproduced as a visible image on the monitor 1.

(b) is an example when DISPSTS=1 and the playback track number is displayed. (C) is DI
This is an example where SPSTS=2 and the transmission track number is displayed. Specifically, the contents to be displayed in step 14-8 are determined as shown in Table 3.

Table 3 Here, in XX, PBTRNO is inserted as two digits, and in △△, TXTRNO is displayed as two digits. , and TX△△ (arm) has two colors on one screen, so it is displayed at regular intervals (
For example, O,'5Hz) R and B are displayed alternately. In this embodiment, the above-described display is performed as an example, but the present invention is not limited to this, and various modified displays are possible.

Power Control Routine> Next, the power control routine in steps 5-7 of FIG. 5 will be explained using FIG.

First, check the value of TX FLG to determine whether or not transmission is in progress (5tep 16-1). If not, 5tep
From page 16-11 onward, if the video is being transmitted, detect whether or not a video floppy is installed (5step 16
-2). If it is not installed, the process branches to 5tep 16-11 and below. If the presence of a floppy disk is detected in step 16-2, since playback and transmission are being performed at the same time, the value of LPTIM is first checked to stop the display on monitor 1 (step 16-3). If the value is not 0, the playback process section, deck section, etc. must remain powered on, so LP TIM
After decrementing the time (step 16-8), 5t
Branches to ep16-10. On the other hand, if LPTIM is O at 5tep16-3, it is low power consumption mode, so
It is sequentially detected whether or not the switches related to playback system control for returning from this mode, that is, the track up switch 3, the track down switch 4, and the display switch 5 are pressed (steps 16-4 to 5t).
ep16-6).

If neither is pressed, the regeneration process section, deck section,
Monitor unit power supply PB PWR, DECK PWR.

Turn off each MONI PWR (step 16-7
). In addition, when it is detected that any one of the buttons is pressed in 5step16-4 to 5step16-6, after presetting LP TIM (step16-9), PB PWRX
Turn on the power to DECK PWR and MONIPWR (step 16-10).

When the routine related to the low power consumption mode described above is completed, the routine enters 5tep16-11, which is a routine for turning off the device power at a certain time after the final operation. OFF here
When TTM is determined to be O, the system control circuit 39 controls the power supply circuit 30, turns off all the power to each circuit section, and then turns off the SYS PWR as well (5tep 16-13). 5tep16-1
1 and OFFTIM is not O, decrements OFFTIM to measure OFF'TIM (step 16).
-12).

By executing the above flow, it is possible to eliminate power consumption of parts that are not necessary for operation, and to reduce power consumption.

Further, according to this embodiment, in the low power consumption mode, by turning on the switch for normal track UP/DOWN, the power to the playback section and the monitor section are automatically turned on, which is convenient for use. Furthermore, the power of the playback section and the monitor section is automatically turned on simply by operating the switch for display shown in FIG. 15, so that it is easy to use.

[Other Examples]

In this embodiment, as shown in FIG. 17 in the two-color mode, the Y signal and the time division line are simultaneously used as color difference signals. However, the present invention is not limited to this, and as shown in FIG. It may also be a simultaneous R/B signal.

In addition, in this embodiment, the transmission signal includes a synchronization signal part of a fixed time,
The reference white level section precedes it, and the transmitting side operates unilaterally, but when the receiving side detects the synchronization signal section, it returns an answer signal, which is detected by the transmitting side, and the process proceeds to the next reference white section. Needless to say, it can be applied to such a system as well, and in this case, the low power consumption mode may be controlled after entering the video section.

As explained above, according to this embodiment, when the playback operation and the transmission operation are performed at the same time, power consumption can be reduced by turning off the power of the playback system that is normally used infrequently.
Particularly when this device is used battery-powered, the operating time on a single charge can be significantly extended, which has the effect of increasing the number of images that can be transmitted.

In addition, since the power is automatically turned off after a certain period of time, there is no need for a separate switch to switch to a low power consumption mode, which has the effect of significantly improving operability.

In the embodiments described above, a monitor device having a transmission function for transmitting still images has been disclosed, but the present invention is of course not limited to such a device, and is not limited to a device without a transmission function. Of course it's good too.

Further, in this embodiment, as a stopping means for stopping the operation of the monitor, a controller is used that executes steps 5tep16-7.5tep16-13 shown in FIG. However, the present invention is not limited to using a timer to automatically turn off the display, but may also include other means such as detecting that the video floppy has not been recorded and turning it off, or using a switch for turning off the display. The display may be turned off by

Further, in this embodiment, when the reproduction operation is stopped by the stop means, the operation of the monitor is started, and when the reproduction operation is performed, the setting means for switching the information supplied to the monitor is activated by the switch 3. , 4 or the display switch 5, the present invention is not limited thereto, and various modifications are possible.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to provide a monitor device that has a simple configuration and is easy to handle.

[Brief explanation of the drawing]

FIG. 1 is a front panel view of this embodiment; FIG. 22 is a block diagram showing the configuration of the power supply circuit 30 shown in FIG. 1;

Claims (2)

[Claims] (1) A monitor that reproduces the supplied information as a visible image;
a stopping means for stopping the reproduction operation of the monitor; switching information supplied to the monitor when the reproduction operation of the monitor is being performed; and switching information supplied to the monitor when the reproduction operation is stopped by the stopping means; A monitor device comprising: a setting means for starting the operation of the monitor device. (2) A patent claim characterized in that the supplied information is information reproduced from each recording block of a recording medium, and the switching by the setting means is to change the recording block from which the information was reproduced. The monitor device according to item 1.